FaustSwiftUI

This is a SwiftUI-based dynamic UI renderer for Faust DSP JSON metadata. It parses the Faust UI JSON structure and displays corresponding SwiftUI controls like sliders, toggles, buttons, bargraphs etc.

Features

• ✅ JSON-driven layout
• ✅ Live binding via @ObservedObject with a FaustUIViewModel
• ✅ Dynamic layout from vgroup, hgroup, tgroup primitives
• 🔄 UI-to-DSP input controls (hslider, vslider, checkbox, button ...)
• 🔄 DSP-to-UI output monitors (hbargraph, vbargraph)
• 🔄 Style metadata (knob, menu, radio ...)
• ❌ Load default values from JSON layout to ViewModel

Usage

let jsonData: Data = ... // Faust UI JSON from libfaust
let ui = try JSONDecoder().decode([FaustUI].self, from: jsonData)

FaustUIView(ui: ui, viewModel: FaustUIViewModel())

Supported Primitives

Type	Description	Implemented
vgroup	Vertical group	✅
hgroup	Horizontal group	✅
tgroup	Tabbed group	✅
hslider	Horizontal slider	✅
vslider	Vertical slider	✅
nentry	Number entry box	✅
button	Momentary push button	✅
checkbox	Toggle button	✅
hbargraph	Horizontal bargraph	✅
vbargraph	Vertical bargraph	✅

Supported Styles (via [style:...] metadata)

Style	Description	Implemented
knob	Rotary knob	✅
menu{...}	Dropdown menu	❌
radio{...}	Radio button menu	❌
led	LED-style output	❌
numerical	Numerical value display	❌

Supported Metadata

Key	Description	Implemented
style	Widget style	✅
unit	Display value unit	❌
scale	Value scaling	❌
tooltip	Tooltip	❌
hidden	Hidden components	✅